Glass-pressing machine



May 14, 1929.

M. JAEGER GLASS PRESSING MACHINE Original Filed April 17, 1922 16 Sheets-Sheet l WW Max Jaeger May 14, 1929.

M.JAEGER GLAS S PRES SING MACHINE Original Filed April l7; 19

22 16 Sheets-Sheet 5 0 ll M v a z W g m: 5:

will/Ill!!! l 844/0644 W Max Jaeyer z& VIII/Ml).

May 14, 1929.

Original Filed April 17. 1922 M. .JAEGER GLASS PRESSING MACHINE 16 Sheets-Sheet 4 Wm Max Jaqger May .14, 1929. v JAEGER 1,712,499

' GLASS PRESSING MACHINE Original Filed April 17, 9 l6 Sheets-Sheet 5 May 14, 1929. M. JAEGER 1,712,499

GLASS PRES S ING MACHINE .Original Filed April 17. 1922 16 Sheets-Sheet 6 /Ag i 6'45 639 642 650 '48 9 I; 648 661 6'47 W and I e 6W 671 Mar my 1 May 14, 1929. JAgGER 1,712,499

GLASS PRESSING MACHINE Original Filed April 17, 1922 16 Sheets-Sheet Mar Jaeyer y 14, 1929- M. JAEGER GLASS PRESSING MACHINE Original Filed April 17. 1922 16 Sheets-Sheet 9 mm Max Ja ger May 14, 1929. M, JAEGER 1 ,712,499

GLASS PRESSING MACHINE 'Original Filed 'April 17. 9 2 v .16 Sheets-Sheet l0 Max Jagger May 14, v MEJAEGER 1,712,499

GLASS PRES SING MACHINE Original Filed April 17, 1922 16 Shees-Sheet ll O A A Marfaeyer May 14, 1929.

M. JAEGER I GLASS PRESSING MACHINE Original Filed April 17, 1922 16 Sheets-Sheet 12 Mar Ja ger GLASS PRESSING MACHINE Original Filed April 17. 1922 16 Sheets-Sheet 13 May 14, 1929. M. JAEGER GLASS PRESSING MACHINE Original Filed April 17. 1922 16 Sheets-Sheet l4 Original Filed April 17, 1922 16 Sheets-Sheet l5 ANN QQN

INVENTOR Mar .faeyel" ATTORNEY May 14, 1929. JAEGER 1,712,499

GLASS PRESSING MACHINE Original Filed April 17, 192.? 16 Sheets-Sheet l6 J INVENTOR Max flwyez" ATrdRNEY rut lfimtt PATENT @FHTEW MATT. JAEGER, UT Tlbhl'til IQLATTD CITY, NEW YUEK, .AfifiIGhl'QR T0 ANCHQR CA1? d; CLUS URJE CORTORATIQN, UT LONG ISLAND @ITY, NEW "TUBE, A CORPORATION Olll NEW YORK.

original application filed April it, 19252, ttcrlal lt'o. 553,900.. mivtded and this application filed July til,

, teat. serial No. raaaea This invention is a division of my application Serial No. 553,900 filed April 17, 1922, and relates to the glass art and more especiab ly to an automatic pressing machine. I

Heretofore in the art the most common type of presses has been of the stop and start type; that is, the mold table had an intermittent movement so that the whole mass of metal, comprising all the revolving-parts of the machine, was stopped and started for each piece of ware manufactured. This motion imposed a very heavy duty upon the driving mechanism as well as on the press, because of necessity these very heavy parts had to be started, moved, and stopped at very small intervals of time when a machine was delivering many pieces of finished glassware per minute. This stopping and starting rendered the load condition on the driving forces very unsatisfactory because at one time there was no load,as when the press is stationary,and at the neat instant the load was exceedingly heavy. If several machines were operating in unison this load disturbance was pyramided. Since several machines other than resses were usually run from the same driving plant this variable load factor disturbed the operation of other machines, unless the operating power was so powerful as to be inefficient and wasteful in opcration The jerky motion also jerked the glass charges around in the mold and under certain conditions introduced defects in the ware. Furthermore, such a typepf machine naturally required constant re airs because of loosening of parts and brea age. It has also been the practice in the art to provide complicated mechanisms for transferring the charge from the press mold to the blow mold. In many cases this was done by an inversion method where the charge was inverted either in one step or the other. This was liable to change the shape and condition of the glass and produce defects in the ware. Various types of split press molds have been in use but these molds leave seams in the finished Ware where the split press mold parts meet. This is due to the very sensitive character of the glass when it leaves the feeder and before a thick skin is formed on the charge. Furthermore, complex transferring mechanisms increase the weight of moving parts and slow up the machine.

Where automatic feeders have been used it has been the practice to drive the feeder independently of the press. This has made it necessar to coordinate two separately driven mac ines to secure a common timin for the interval when the glass is delivers from the feeder to the press. There are times when it is necessary to change the rate of the feeder and there are times when it is desirable to change the rate of the press. These changes may be desirable siinultaneously, or, either the press or the feeder may require the change. However, in any case where a change is made in either the feeder or the press as to the rate of charges de livered or the rate of finished ware produced, a corresponding change must be made in the other machine. Where the two machines have independent drives any change requires double manipulation and adjustments which must properly time the feeder and press at the new rate before were can be made,

The machine embodying the invention hereinafter specified comprises a continuously rotating mold table having a constant speed of rotation, except when the speed is changed for adjustments, and wherein the feeding, pressing, blowing, and delivering operations are all performed without in any way changing the speedof rotation of the machine. Under these conditions the load is very even and the machine operates with minimum shock and jars. The power consumed is very light and since no abnormal load is produced a constant and efiicient drive is the result.

The charge transferring devices are simple and are so located that the charge is not disturbed or marred during or after pressing. The parts are compact and therefore the machine occupies small floor space.

The machine embodying the present invention may be generally described as comprising a base frame u on which all the mechanisms except the eeder are mounted. This base frame carries a central column which is a mast around which the machine is built. The mold table revolves around this column and carries press molds and blow molds. The press molds rise throu h the mold table between the members 0 split blow-molds and receive the glass I charge which is dropped from the feeder into a funnel that at the feeding moment is moving clockwise with the mold. When the mold is lid til

--fed the funnel leaves the .mold and moves counterclockwise to a point slightly beyond the path of the falling charges, where the In the machine there are a plurality of groups of mold members carried by the mold table and but one'funnel and one plunger to serve these molds. 'I he mold table, therefore, continuously rotates while the funnel and plunger-oscillate. When the pressing operation is completed the neck of the ware is formed to overhang a split ring mold and then the plunger rises and the solid block pressing mold descends, leaving the charge suspende from the neck ring mold. After the descent of the pressing mold a slide brings the bottom of the blow mold into place beneath the charge and a blow mold then closes around the char e. A blow head descends upon the ring mold and air is admitted tothe blow head, thereby blowin the char e into a finished article. The low hea then rises slightly'and continues to blow cool air into the blown article, thereby gently'cooling the hot glass. The blow mold now opens, the bottom slide moves out and carries outwardly the finished piece of ware. An automatic take-ofi' comprising a pair of spring operated jaws then grasps the ware and removes the ware from the slide by a combined circular plunger in operation;

and lifting motion so that the ware is elevated slightly as it is removed from the bottom of the blow mold. At the next station the In the machine herein disclosed there are six mold stations on the mold'table and six cycles performed during one complete rotation ofthe mold table.

Realizing that the present invention may be embodied in constructions and devices other than those herein described and shown it is desired that the disclosure shall be con- Figure 5 is a detail view of the drive to the vertical main shaft;

Figure 6 is a detail view of the mechanism for withdrawing the press from position beneath the feeder;

Figure 7 is a layout of the control pipes;

Figure 8 is a sectional view through the plunger;

Figure 9 is a detail view of a reducing valve;

Figure 10 is a detail view of a control valve;

Figures 11 and 12 are sectional views of the control valve for the press plunger;

Figure 13 is a plan view of the pipe connections to the pressing cylinder;

Figure 14 is an elevational View of the parts shown in Figure 13;

Figure 15 is a detail of the operating cam for the control;

Figure 16 is a. detail of the control valve shown in Figures 11 and 12 and illustrates the service pipe connections;

Figure 17 shows the pressing cylinder;

Figure 18 is a plan view of the pipe lines and the guiding funnel;

Figure 19 is a plan view of the funnel cam and pressing plunger;

Figure 20 is an elevational view of the parts shown in Figure 19;

Figure 21 is a diagrammatic view of the movements of the plunger andthe guiding funnel;

Figure 22' shows the adjustmentsfor the control cam;

Fi ure23 is an elevational view of the detail s own in Figure 22;

Fi ure 24; illustrates the indicator scale for t e control adjustments;

Figure 25 is a detail showing the presser Figure 26 isa plan view of a single mold showing the ring mold closed and the blow mold open;

Figure 27 is a diagrammatic view of the riiig mold and cam therefor;

igure 28 is a diagrammatic view of the slide plate and cam therefor;

Figures 29 to 40 inclusive are alternate plan and corresponding elevational views of a complete cycle of a single mold from receiving the charge-to discharging the completed ware;

Figure 4.1 is a view showing a complete cycle of movement of a press mold;

Figure 42 illustrates the cam for operating the lockinglpin to lock the press mold directly under 't e press plunger;

Figure 43 is a detail of the solid ring lifting cam; and

Fi re 44 is a diagrammatic view showing 2 the s aping mechanism and the driving connection to the glass feeder.

Reference w1ll now be made to specific constructions embod in the invention which will be described in etail.

tvraeea Main drive and main frame.

.wheel 7 so that the field of the motor may be controlled in such manner as to obtain a relatively large range of speed. The particular speed for which the motor is set to run is indicated on the dial 8 which faces the control handle wheel so that an operator manipulating the wheel may observe the needle on the dial to determine the speed at which the motor is being set to run.

The motor shaft carries a'pinion 9 which meshes with a gear 19 that is mounted on the stub shaft 11. 4 gear 12 on the stub shaft 11 is in engagement with a gear 13 on a front section of the main shaft. The stub shaft 11 also carries bevel gear 14 which meshes with the bevel pinion 15 on the hand driven shaft 16 which permits the operator to place a crank on the squared portion 17 and thereby turn the machine by hand when desired. The hand driven mechanism runs idly when the machine is driven by the motor. The front section of the main shaft carries one half of a disk clutch member 18 and the main drive shaft 19 carried the other half of the disk clutch. This disk clutch is adapted to be 0perated by the lever 20 which is operated by pinions 21 and 22 on the control shaft 24 which carries the main control hand lever 25 so that-when this lever is operated the disk clutch may be opened or closed to connect or disconnect the main shaft 19 from the motor drive. The main shaft carries a bevel pinion 26 which connects with-a corresponding pinion 27 on the shaft 28 that carries a worm 29 which drives the worm wheel 30 that operates the take-0d mechanism.

The main drive shaft 19 also carries a large worm 31 that engages the main drive worm wheel 32 that is mounted on the vertical main shaft 34. Referring to Figures 2 and 5 it will be noted that the vertical main shaft extends upwardly through the column 35 which is fixedly mounted upon the main frame 2. The vertical main shaft 34 carries a reduction gear 36 that meshes with a larger gear 37 on the vertical countershaft 38 which also carries on its upper end a pinion 39 that engages a mold table drive gear 40 so that the mold table is continuously rotated when the main shaft 19 is driven.

Referring now to Figures 3 and 4, it will be noted that the front main shaft which rotates whenever the motor is running,'carries a gear 41 which engages a gear 42 on the glass feeder shaft 44. This gear 42 carries one part of a simple spiral clutch 4445". The main drive shaft 19 runs at a relatively high speed as compared to thespeed necessary to operate the timer for the glass feeder to enable the feeder to deliver glass at the proper rate for the press. When the press is stopped and withdrawn from the feeder, as will later be explained, it is desirable to run the feeder at a higher rate so that small charges will be dropped in a suitable cullet trough. l/Vhen the press is operating, how ever, and the drive for the press is driving the feeder, it is desirable to take the power for the feeder from a high speed main shaft, thus avoiding irregularities in speed which might be due to press operation, and areduction gearing is introduced as a means for obtaining the proper speed for. the feeder control drive. This is accomplished (Figures 3 and 4) by the gear 46 on the main drive shaft 19 which meshes with a gear 47 on the slidable frame 48, that slides upon the base 49 when the clutch lever 20 is actuated because this clutch lever 20 is connected to the frame 48 by a lever 50 of the second class which is pivoted at 51 to the base 49. The gear 47 is connected to a revolving head 52 mounted to revolve on the shaft 44. This "head carries planetary gears 54, the larger reduction gear 61 that is also mounted upon 1 the frame 48. The larger member of the double reduction gear 61 meshes with a pinion 62 secured to the shaft 44. By this construction it will be noted that when the clutch lever 20 is operated to open the disk clutch the positive clutch 4445 drives the feeder shaft 44 and the frame 48 has been moved forward to disengage the gear 46 from meshing with the gear 47. However, when the clutch lever 20 is operated to close the disk clutch then the positive clutch 4445 is opened and the gears 46 and 47 are in mesh. Power from the main shaft 19 is transmitted to the gear 46 and from it to the gear 47, which drives the revolving head 52 and causes the planetary gears to that extends parallel to the track of the machine. This shaft 65 has a sliding key drive engagement with the sprocket wheel 66 that is secured to the stationary post 67. The sprocket carries a silent chain 68 which drives the feeder sprocket 69. This chain drive, operated by the sliding shaft, permits the machine to be withdrawn from beneath the feeder without breaking the drive to the feeder. Y

The main frame 2 rests upon track wheels 70, which are adapted to roll upon rails 71 so that the machine may be moved toward or from the feeder, as is necessary or desired. It will also be noted that the switchboard 72 adjacent the motor is connected to the control switch 74 for the motor by suit able conduit 75.

Mold table and block mold.

The press or parison mold mechanism which is of the block mold type, is shown more specially in Figures 2 and 41. The mold table drive gear 40 is carried by the lower portion of the mold table 101 which is supported upon the ball-bearing 102 and is mounted to rotate around the column 35. At suitable intervals around the mold table, mold stations are mounted at 60 degree intervals so that in the present construction there are six stations. These stations are all duplicate mechanisms so that in describing the several mold elements only one station need be re ferred to, it being understood that the same elements are duplicated at each of' the other five stations. The press or parison molds are arranged in guides 104 that are provided in the skirt of the mold table and these molds are adapted for vertical movement. The press mold construction comprises a carrier frame 105 in which is mounted a base block 106 that is held in position in a socket in the carrier frame by stub screw 107. The base block is connected by means of ring 108 to the block mold109 which is provided with a mold opening 110 of the form desired for the glass and is also provided with a recess 111 which is adapted t receive the ring mold which will later be described. The block mold 109 is provided with a lift pin 112 that is operated by an actuating rod 114 that is normally retained in lower position by a suitable spring 115. The lower part of the carrier frame is provided with a carriage roller 116 which is adapted to roll on an annular cam track 117 as the mold table continuously rotates. This annular cam track causes the press molds to be raised and lowered during the rotation of the mold table and in Figure 2 the press mold on the right of the figure is in its highest position while the press mold on the left is in the lowest position. In order to insure the press mold being retracted at the proper time a retracting cam 118 is provided adjacent that portion of the annular track Where the mold and prevent the glass from sticking in the press mold when the mold descends. From the foregoing it will appear that the press molds may be easily detached from the carrier frame whenever it is desired to change the molds.

Split ring neck mold.

When the press mold is raised to its highest position the split ring mold shown more specially in Figures 2, 26 and 27, is seated in the recess 111. This split ring mold, which forms the lower portion of the neck of the ware, and which supports the pressed charge when the press mold is lowered, comprises a pair of arms 201 and 202 on the outer end of which is formed the ring mold proper. The upper face of these arms is recessed at 203 to provide an interlock for the solid ring mold. These arms are pivoted on stub bolts 204 that are secured to the ring mold frame 205 that comprises a bracket which is L-shaped in cross section and which is mounted to rotate with the mold table as will be more specifically explained later. The stub-bolts 204 are removable whenever it is desired to change the split ring molds.

Referring to Figure 26, it will be noted that the outer corners of the arms 201 and 202 are connected by spring links 206 and 207 with the side block 208 (Figs. 2 and 26) which carries a roller 209 that travels in the cam groove 210 (Figs. 2, 26, and 27) in the ring mold cam 211, which is maintained against rotation relatively to the column 35 by means of the key 212 which slides in a keyway in the colunm 35. This ring mold cam and the whole of the ring mold structure is adapted to be raised and lowered in order to accommodate the machine to the manufacture of ware of different heights. This raising and lowering is accomplished by means of a large geared nut 214 which engages the threads 215 on the column 35. The gear member of the nut 214 engages a pinion 216 which is mounted to rotate in a sleeve carried by the ring mold cam 211, and this pinion is provided with an opening to receive the end of a squared shaft so that when the shaft is inserted and turned by a crank or hand wheel the large nut 214 will be turned on the threads 215 and since the upper end of this nut comprises the supporting member for the large ring mold cam and associated parts all of these parts will be raised and lowered as desired.

From the foregoing description and an in- 

